/*
 *******************************************************************************
 *
 * Copyright (c) 2016-2017 Advanced Micro Devices, Inc. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 ******************************************************************************/

#include "core/engine.h"
#include "palIntrusiveListImpl.h"
#include "palMutex.h"

namespace Pal
{

// =====================================================================================================================
Engine::Engine(
    const Device& device,
    EngineType    type,
    uint32        index)
    :
    m_device(device),
    m_type(type),
    m_index(index),
    m_queueLock(),
    m_pContext(nullptr)
{
}

// =====================================================================================================================
Result Engine::Init()
{
    return m_queueLock.Init();
}

// =====================================================================================================================
Result Engine::WaitIdleAllQueues()
{
    Result result = Result::Success;

    // Queue-list operations need to be protected.
    Util::MutexAuto lock(&m_queueLock);

    for (auto iter = m_queues.Begin(); iter.IsValid() && (result == Result::Success); iter.Next())
    {
        result = iter.Get()->WaitIdle();
    }

    return result;
}

// =====================================================================================================================
void Engine::AddQueue(
    Util::IntrusiveListNode<Queue>* pQueueNode)
{
    PAL_ASSERT(pQueueNode != nullptr);

    // Queue-list operations need to be protected.
    Util::MutexAuto lock(&m_queueLock);
    m_queues.PushBack(pQueueNode);
}

// =====================================================================================================================
void Engine::RemoveQueue(
    Util::IntrusiveListNode<Queue>* pQueueNode)
{
    PAL_ASSERT(pQueueNode != nullptr);

    // Queue-list operations need to be protected.
    Util::MutexAuto lock(&m_queueLock);
    m_queues.Erase(pQueueNode);
}

} // Pal
